Lubricating-bolt



H. M. NAUGLE. LUBRICATING son.

APPLICATION FILED Nov. 19. 1919.

Patented July 12, 1921.

of the bearings, the same does notalways find its wayto the middle portionthereof,

UNITED sir A PAT ENT OFFICE. j

HARRY TUBING-COMPANY, or onn'ron, OHIOfA CORPORATION or 01110.

*LUBRIGATING-BOLT.

ii A pplication filed November 19, 1919.

To all whom it may concern:

Be it known that I, HARRY INAUGLE,

a citizen of the United States, residing at Canton, inzthe county of Stark and State of Ohio, have invented a new anduus'eiul Lubricating-Bolt, of which the following is a specification. M 1

The invention relates means for lubricating the journals and bearings formed by bolts used in the eyes of springs to connect thesame to theshackle or chassis of an, automobile; and" the object of the invention is to use atubular bolt forming a reservoir for the lubricant, and. to provide the same with means, for ejecting the lubricant into the journal bearingfinidway {between its ends, in such a manner that the cavity of the bolt from end to end, maybe utilized as a reservoir from which all thelubricant may be ejected by the means employed, and that the reservoir can be filled without the use of a grease gun. a, i

Jour'nal'bearings ofthis character have a considerable length} compared with the diameter of the journals, and when lubrication is applied to either one or both ends which may thus becomedry; andthis dithculty is increased inspring bolt bearings, and the like, where the ends of thejournals are exposed to the mud and dirt of road and to the corroding action of rainwater,

and atmospheric gases, which clog the end portions of. the bearing and prevent the flow of the lubrica t into" the middle p012 tion thereof. j M

The present improvement overcomes these difiiculties by using a tubular bolt with suitable end closures and one or more radial aperturesm dway between'its ends, and providing therein an axial rod bearing against the endclosures and having an operating head extending through oneoif the end closures, with piston plungers :operatively mounted onv-reversely pitched threads on the rod in each endhalf of the bolt.

A preferred embodiment of the invention is illustrated in the accompanying draw in s, forming part hereof, in whichigure 1 is aside elevation of a portion of an automobile chassis and the end of a Specification of Iietters Patent.

Serial No. 339,094.

MNAUGLE, oreiimo' OHIO, nss'reivon TO THE ALLOY (PARTS M N,UF- A CT" i spring with an intervening shackle, having i:

tio n eye and the bolt therein, showing the ,journal formed by the boltand the bearing in: formed in the eye of the spring;

fFg 3, is a similar section of theeye therein and sponding parts throughout the drawings.

pivotal connections embodying 1 the invenl i Fig. 2, a longitudinal section through the i oft is shown at 1, and a portion ofthe'le'af spring 2 is connected thereto by means of the usual shackles 8. i I The pivotal connections are formed by I the bolts 4 located in bearings formed ,in

the chassis and in the spring; and this bear-' 6 of the spring or inabracket; 7- secured to the chassis of the automobile.

The bolt 4 is made in the form of a holing maybe a bushing 5 secured in the eye% low cylinder or tube and one end may be I closed by a plug 8 secured within the end ,ofthe bolt. endof the bolt is preferably provided wlth a castellated nut 9 locked in positionby a cotter pinlO, although such" v f construction of a closure and theinut is not essential The other end of the bolt is provided with d an ordinary nut 11 into theouter portion of whichmay be screwed the cupshaped cap 12 conforming in diameter to the tubular bolt;

and the rim of thecap and theend' of thebolt are preferably, coned or beveled,, as-

shown at 13, to makea tight and locking joint when the cap" isscrewed into the nut. The screw rod 1% is vprovided in the bolt and is preferably located in the longitudinal axis. One end 1510f the rod mav be coned and the pointof thisend inayfabut the end closure Sof the bolt, while the other end of the rod n isprovided withia head 16extending through a central [bearing pro- I videdin the cap which closes the'end of the bolt, and having a flange abutting the inside of the cap. The protruding head of the rod is provided with a diametric slot 19 adapted to receive a coin or screw driver for rotating the rod.

' the journal bearing 5, and the periphcryvot;

l sertedeintheboltyand its conedend screwed A plunger 20'is mounted on each end of the rod, which in turn is providedwith'op positelypitched threads for moving the plungers to and from; the middle of the bolt. by a, rotation of the rod; and one, or more radial aperturesQI are provided 1n the wall of the bolt 4t midway betweenthe'endsof the journal portion of the bolt is flattened orlgrooved longitudinally eachwaynf -roml the apertures; thus forming a channel along which lubricant may fiow from-the middle apertures in the bolt, to the extreme ends of the j ournal bearings- For filling the cavity-of the 'boltwi th lubricant, the plungers may be moved to" the extreme ends ot' thfe bolt by" a rotation of therod, after which the c'ap closure-may be removed and the rod turned out'of 'th plunger at the coned end of the ma where?" 1 upon the rodand the other-plunger may be with'drawn from the cavity of the bolt, lea'ving the one plunger in the closed end theme The cavity F'Of" the, boltyis? then entirely filled: with grease or other form'- of lubri Jcant; byi-rneans o f a- -s'coop',"spoon on other" utensilgyiwhereupon the ma may-be rein.-

into the plunger in the closed end thereoi, after which thecap 12 is screwe'd' into-the v nut '11 to 'close the other end of-the bolt,

and the same is ready-for use.

With "the reservoir of the bolt thus filled Y with grease; it is evident that a proper rotac a den ofgthe' rod will ,move the plungers iir V unison, toward the middle ofthe boltfthu's ejecting the lubricant throu'glrthe apertures 2 at the middle of the bearing; and if the journalisprovided with the longitudinal channels 22 the grease will freely flow along 1 these 1 channels to the extreme end 1 of the bearing; Atany ev'ent;the grease ejected throughthe'apertures will lubricate the mid- 1 dle portion of the bearing and will natur= ally work-pits way. to the ends 'thereofincase channels, thereforare not provided 1 7' By'thisconstruction and arrangement it is evident that the entirelength of thei'tubu larbolt, including-the end portions extendof the bolt can be filled 'withoutthe use of a grease gun. a a I I claim:

1. A hollow bolt forming a journal in the bearing of a spring eye or the likea an-ape'r- .'-ture in thebolt. at the middle-of the bearing,

plungers'in each end of the bolt,' and means for simultaneously moving the plungers fromthe ends of the bolt to and from the middle aperture.

' 2; A hollowbolt'forming a journal in the bearingof a'spring eye or the like, an aperture in the bolt at the middle of the bear ing, longitudinal channelsin the periphery of the bolt each way from mhe aperture?- plungers in'each end of the boltfand means bolt to and "from the middleaperturei' "for simultaneously" moving the 'plungers front the ends of. the

The combination of aspringfeye'orthe" 5 like formingfa continuous-'cylindricbearing? j hollow bolt 'or th'e like forming aiournal tromendto end offthebearing; arr-aperture? *inthe bolt at 3thefmiddle'of the bearing'lom gitudinal grooves in the V periphery of 1 the *bolt each way "from the aperture; plunger sf" ineach'end of the bolt, andm'eans-for imme 'taneously: moving" the plunger f mwh ends of the bolt,to and fronrth'e'middleajpr "erturez' r I.

4- The combination ofja' spring'f yg f th like formin-g a continuous cyl'indrie bearing} 1 hollow bolt or'the like forming" ajournab" from end to end ofthebeari'ngan aperture in the boltatthe-middle of the bearing p'lun'gers in each end ofthe boltfandmeans for simultaneouslymoving the plungers fromth e ends'of the boltftojand from the 5 A 7 middle aperture.

r 5. A hollow bolt forming a were the" I bearing of a spring eye'orthelikdanapefi ture in thebolt at the middle of the'bearingf' 1 arlongitudinal shaft' oppofsitelythreadedfin;

each end half oftheboltysaid shaft'hatii'ig one endfree intheboltfanda'head'onthe j other end protruding'through theen'd ofthe "bolt; and opposing plu'ngerso'pera-tedbythel [shaft 'l'romthe ends'of the bolt to and from the ends=ofthe middle aperturef A hollow bolt l forming the bearmg in a' f i r l at the m1dd'leof thebearmg', alongitudinafl spring eye or the"like,-anaperture ilrthe bolt shaft-oppositely threaded each end half by the shaft from? the ends of thebol'tItoand of thebolt, and opposingiplungers o erated fitom the middle aperture:

subscribedmyname. 

